JP2000204938A - Gas flow passage having ceramic honeycomb structural body - Google Patents

Gas flow passage having ceramic honeycomb structural body

Info

Publication number
JP2000204938A
JP2000204938A JP11008514A JP851499A JP2000204938A JP 2000204938 A JP2000204938 A JP 2000204938A JP 11008514 A JP11008514 A JP 11008514A JP 851499 A JP851499 A JP 851499A JP 2000204938 A JP2000204938 A JP 2000204938A
Authority
JP
Japan
Prior art keywords
honeycomb structure
ceramic honeycomb
gas flow
flow path
ceramic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP11008514A
Other languages
Japanese (ja)
Other versions
JP3821975B2 (en
Inventor
Toshihiko Hijikata
俊彦 土方
Yukiharu Morita
幸春 森田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NGK Insulators Ltd
Original Assignee
NGK Insulators Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NGK Insulators Ltd filed Critical NGK Insulators Ltd
Priority to JP00851499A priority Critical patent/JP3821975B2/en
Priority to DE60035813T priority patent/DE60035813T2/en
Priority to CA002295404A priority patent/CA2295404C/en
Priority to US09/482,120 priority patent/US6521193B1/en
Priority to EP00300210A priority patent/EP1020621B1/en
Publication of JP2000204938A publication Critical patent/JP2000204938A/en
Application granted granted Critical
Publication of JP3821975B2 publication Critical patent/JP3821975B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
    • F01N3/28—Construction of catalytic reactors
    • F01N3/2839—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration
    • F01N3/2853—Arrangements for mounting catalyst support in housing, e.g. with means for compensating thermal expansion or vibration using mats or gaskets between catalyst body and housing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2450/00—Methods or apparatus for fitting, inserting or repairing different elements
    • F01N2450/02—Fitting monolithic blocks into the housing

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Catalysts (AREA)
  • Laminated Bodies (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a gas flow passage having a ceramic honeycomb structural body to prevent the breakage of a honeycomb structural body during canning even when a ceramic honeycomb structure having a partition wall being thin in thickness is contained. SOLUTION: In a gas flow passage having a ceramic honeycomb structural body 2 contained in a metal case as a grasping material 1 is interposed therebetween, a mating parts 4 formed in shapes complementary to each other are arranged at the two end parts of the grasping material 1. The part in the vicinity of the mating part 4 of the grasping material 1 wound around the outer peripheral surface of the ceramic honeycomb structural body 2 is arranged opposite to the partition wall 9 of a cell 8 of which the honeycomb structure constitutes.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明の属する技術分野】 本発明は、主に、自動車用
排ガス浄化システムに使用されるセラミックハニカム構
造体を有するガス流路に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas passage having a ceramic honeycomb structure used for an exhaust gas purification system for an automobile.

【０００２】[0002]

【従来の技術】 現在、ハニカム構造体を有するガス流
路は、高い開口率に由来して排ガスを通過させる場合の
圧力損失が低く、優れた排ガス浄化性能を発現するもの
として広範に普及しており、例えば、自動車用排ガス浄
化システムに使用されるセラミックハニカム触媒コンバ
ーターが広く知られており、例えば、特開昭４９−７２
１７３号公報及び特開平７−７７０３６号公報等に開示
されている。2. Description of the Related Art At present, gas passages having a honeycomb structure have been widely used because they exhibit a low pressure loss when passing exhaust gas due to a high aperture ratio and exhibit excellent exhaust gas purification performance. For example, ceramic honeycomb catalytic converters used in exhaust gas purification systems for automobiles are widely known.
173 and JP-A-7-77036.

【０００３】 このようなセラミックハニカム構造体を
有するガス流路においては、セラミックハニカム構造体
の取扱いを容易にすべく、ハニカム構造体は、メタルケ
ースに収納された状態で流路に取り付けられる。この場
合、メタルケース内にハニカム構造体を確実に把持する
とともに、外部からの衝撃を軽減するために、ハニカム
構造体の外周面と、メタルケースの内周面との間に、例
えば、セラミック繊維マットから成る把持材を圧縮した
状態で介在させている。In a gas flow path having such a ceramic honeycomb structure, the honeycomb structure is attached to the flow path in a state housed in a metal case in order to facilitate handling of the ceramic honeycomb structure. In this case, in order to securely hold the honeycomb structure in the metal case and reduce an external impact, for example, a ceramic fiber is provided between the outer peripheral surface of the honeycomb structure and the inner peripheral surface of the metal case. A holding member made of a mat is interposed in a compressed state.

【０００４】 ハニカム構造体を、メタルケース内に把
持材を介して収納する方式としては、一般的に、押し込
み方式、巻き締め方式及びクラムシェル方式が知られて
いる。押し込み方式とは、図２（ａ）に示すように、把
持材１を巻き回したセラミックハニカム構造体２を、メ
タルケース３の開口部の一方より押し込むことにより、
メタルケース３内に収納する方式である。この方式にお
いては、図２（ｂ）及び（ｃ）に示すように、把持材１
の両端部に、互いに相補的な形状を有する合わせ部４が
設けられ、把持材１をハニカム構造体２の外周面に巻き
回した上で、把持材１の両端部の合わせ部４が嵌め合わ
せられ、固定される。尚、把持材１の圧縮は、図２
（ｄ）に示すように、孔径が一方から他方に向かって小
さくなる挿入治具５を用いてハニカム構造体２をメタル
ケース３内へ押し込むことにより行われる。[0004] As a method of storing the honeycomb structure in a metal case via a gripping material, a push-in method, a winding-up method, and a clamshell method are generally known. As shown in FIG. 2A, the pushing method is to push the ceramic honeycomb structure 2 around which the gripping material 1 is wound from one of the openings of the metal case 3.
This is a method of storing in the metal case 3. In this method, as shown in FIGS.
Are provided at both ends of the honeycomb structure 2. After the gripping material 1 is wound around the outer peripheral surface of the honeycomb structure 2, the mating portions 4 at both ends of the gripping material 1 are fitted. Is fixed. The compression of the gripping material 1 is shown in FIG.
As shown in (d), the honeycomb structure 2 is pushed into the metal case 3 using an insertion jig 5 whose hole diameter decreases from one side to the other side.

【０００５】 一方、巻き締め方式とは、図３（ａ）、
（ｂ）に示すように、ハニカム構造体２の外周面に把持
材１を巻き回し、メタルケース３に挿入して、図７に示
す上下のワイヤーロープ１８間にメタルケース３を装填
し、所定荷重で上下に引っ張ってケース３を巻き締める
ことで把持材１を圧縮し、ハニカム構造体２をメタルケ
ース３に固定するものである。又、クラムシェル方式と
は、把持材を巻き回したハニカム構造体を相互に対称な
形状を有する一対の金属製のハーフシェルを向かい合わ
せた中に入れ、ハーフシェル同士を溶接する方式であ
る。On the other hand, the winding method is shown in FIG.
As shown in (b), the gripping material 1 is wound around the outer peripheral surface of the honeycomb structure 2, inserted into the metal case 3, and the metal case 3 is loaded between the upper and lower wire ropes 18 shown in FIG. The gripping material 1 is compressed by pulling up and down by a load and winding up the case 3 to fix the honeycomb structure 2 to the metal case 3. The clamshell method is a method in which a honeycomb structure in which a gripping material is wound is put in a pair of metal half shells having mutually symmetric shapes facing each other, and the half shells are welded to each other.

【０００６】 ところで、最近における環境問題がらみ
の排ガス規制強化、例えば、米国における排ガス評価試
験モードの一つであるＬＡ−４モードにおけるハイドロ
カーボン排出総量低減の要請に伴い、セラミックハニカ
ム触媒には従来以上に卓越した排ガス浄化性能の発現が
期待されている。特に、エンジンをスタートしたばかり
の状態、いわゆるコールドスタート時では触媒が十分に
暖まっていないために十分活性化しておらず、浄化効率
が著しく低い。このため、コールドスタート時における
触媒の早期活性化が排ガス規制をクリアーするための最
重要課題とされている。このような観点から、一般論と
して、セラミックハニカム触媒における隔壁をより薄く
形成し、開口率を一層高めて圧力損失を低下させると共
に、ハニカム構造体重量を軽減し、触媒の熱容量を低減
させて触媒の昇温速度を高めることが提案されている。
この場合には、大きな幾何学的表面積が得られることか
ら、ハニカム触媒の小型化も期待することができる。こ
のような観点から、近年においては、厚さ０．０３〜
０．１０ｍｍという薄い隔壁を有するセラミックハニカ
ム構造体が開発されている。By the way, with the recent tightening of exhaust gas regulations related to environmental problems, for example, with the demand for reducing the total amount of hydrocarbon emissions in the LA-4 mode, which is one of the exhaust gas evaluation test modes in the United States, ceramic honeycomb catalysts are more than ever before. The development of outstanding exhaust gas purification performance is expected. In particular, in the state where the engine has just been started, that is, at the time of a so-called cold start, the catalyst is not sufficiently activated because the catalyst is not sufficiently warmed, and the purification efficiency is extremely low. For this reason, the early activation of the catalyst at the time of a cold start is regarded as the most important issue for meeting the exhaust gas regulations. From this point of view, in general terms, the partition walls of the ceramic honeycomb catalyst are formed thinner, the aperture ratio is further increased, the pressure loss is reduced, the weight of the honeycomb structure is reduced, and the heat capacity of the catalyst is reduced. It has been proposed to increase the rate of temperature rise.
In this case, a large geometric surface area can be obtained, so that a reduction in the size of the honeycomb catalyst can be expected. From such a viewpoint, in recent years, a thickness of 0.03 to
A ceramic honeycomb structure having a partition wall as thin as 0.10 mm has been developed.

【０００７】[0007]

【発明が解決しようとする課題】 しかしながら、隔壁
が薄いセラミックハニカム構造体は、構造体としての強
度の一指標であるアイソスタティック破壊強度について
の最低保証値（１０ｋｇｆ／ｃｍ2以上とされる。）の
達成が困難となる。ここで、アイソスタティック強度と
は、社団法人自動車技術会発行の自動車規格であるＪＡ
ＳＯ規格Ｍ５０５−８７に規定されており、ハニカム構
造体に、アイソスタティック、即ち、等方的な静水圧荷
重を負荷したときの圧縮破壊荷重であって、破壊が発生
したときの圧力値で示される。However, a ceramic honeycomb structure having a thin partition wall has a minimum guaranteed value of isostatic breaking strength (10 kgf / cm 2 or more) which is one index of the strength of the structure. Is difficult to achieve. Here, the isostatic strength is a car standard issued by the Japan Society of Automotive Engineers of Japan.
It is stipulated in SO standard M505-87, and is an isostatic, that is, a compressive fracture load when an isotropic hydrostatic pressure load is applied to a honeycomb structure, and is indicated by a pressure value at the time when fracture occurs. It is.

【０００８】 そのため、セラミックハニカム構造体を
有するガス流路において、従来の方式で、ハニカム構造
体をメタルケース内に収納したのでは、ハニカム構造体
をメタルケース内に、把持材を介して収納する作業（キ
ャニング）中に、把持材による締め付けにより、ハニカ
ム構造体が破損するという問題があった。[0008] Therefore, in the gas flow path having the ceramic honeycomb structure, if the honeycomb structure is housed in the metal case by the conventional method, the honeycomb structure is housed in the metal case via the holding material. During the operation (canning), there is a problem that the honeycomb structure is damaged by the fastening with the gripping material.

【０００９】 本発明はかかる状況に鑑みてなされたも
のであり、その目的とするところは、隔壁の厚さの薄い
セラミックハニカム構造体を収納した場合でも、キャニ
ングの際にハニカム構造体が破損することのないセラミ
ックハニカム構造体を有するガス流路を提供することに
ある。The present invention has been made in view of such circumstances, and an object of the present invention is to break a honeycomb structure during canning even when a ceramic honeycomb structure having a thin partition wall is stored. An object of the present invention is to provide a gas flow path having a ceramic honeycomb structure without any problem.

【００１０】[0010]

【課題を解決するための手段】 即ち、本発明によれ
ば、間に把持材を介しつつ、メタルケース内に収納した
セラミックハニカム構造体を有するガス流路であって、
上記把持材が、その両端部に、互いに相補的な形状を有
する合わせ部を有し、上記セラミックハニカム構造体の
外周面に巻き回した上記把持材の合わせ部近傍部分を、
ハニカム構造を構成するセルの隔壁に対向するように配
置したセラミックハニカム構造体を有するガス流路が提
供される。That is, according to the present invention, there is provided a gas flow channel having a ceramic honeycomb structure housed in a metal case with a holding member interposed therebetween,
The gripping material, at both ends thereof, has a mating portion having a shape complementary to each other, the portion near the mating portion of the gripping material wound around the outer peripheral surface of the ceramic honeycomb structure,
A gas flow path having a ceramic honeycomb structure disposed so as to face a partition wall of a cell constituting a honeycomb structure is provided.

【００１１】 上記のガス流路は、上記把持材を巻き回
したセラミックハニカム構造体を、上記メタルケースの
開口部の一方より押し込むことにより、上記メタルケー
ス内に収納したものであってもよい。[0011] The gas flow path may be one in which the ceramic honeycomb structure around which the gripping material is wound is housed in the metal case by pushing the ceramic honeycomb structure from one of the openings of the metal case.

【００１２】 又、上記のガス流路において、上記合わ
せ部の巻き回し方向における長さが２０〜５０ｍｍ、又
は上記把持材の巻き回し方向における長さの５〜１５％
であることが好ましい。In the gas flow path, the length of the joining portion in the winding direction is 20 to 50 mm, or 5 to 15% of the length of the gripping material in the winding direction.
It is preferred that

【００１３】 又、本発明によれば、間に把持材を介し
つつ、メタルケース内に収納したセラミックハニカム構
造体を有するガス流路であって、上記メタルケースは、
上記セラミックハニカム構造体の外周面に巻き回した上
記把持材にさらに巻き回した金属板を、その両端部を重
ね合わせた状態にて巻き締めた構造を有し、上記両端部
のうち、内側に配置された端部近傍部分を、ハニカム構
造を構成するセルの隔壁に対向するように配置したセラ
ミックハニカム構造体を有するガス流路が提供される。Further, according to the present invention, there is provided a gas flow path having a ceramic honeycomb structure housed in a metal case with a holding member interposed therebetween, wherein the metal case is
The metal plate further wound on the gripping material wound on the outer peripheral surface of the ceramic honeycomb structure has a structure in which both end portions are overlapped and tightened, and among the both end portions, inside There is provided a gas flow path having a ceramic honeycomb structure in which a portion near an arranged end is arranged so as to face a partition wall of a cell constituting the honeycomb structure.

【００１４】 本発明のガス流路において、セラミック
ハニカム構造体の隔壁の厚さが０．１０ｍｍ未満であっ
てもよい。又、セラミックハニカム構造体のハニカム構
造を構成する各セルの断面形状は四角形であることが好
ましい。又、本発明のガス流路において、セラミックハ
ニカム構造体は、排ガス浄化用触媒であってもよい。In the gas flow channel of the present invention, the thickness of the partition wall of the ceramic honeycomb structure may be less than 0.10 mm. Further, it is preferable that each cell constituting the honeycomb structure of the ceramic honeycomb structure has a rectangular cross section. In the gas flow path of the present invention, the ceramic honeycomb structure may be an exhaust gas purifying catalyst.

【００１５】 さらに、本発明のガス流路において、上
記把持材は、セラミック繊維より成るマットであること
が好ましい。又、把持材を圧縮した際の発生面圧が、ガ
ス流路の実用温度範囲内において、常温時の２倍未満で
あることが好ましい。Further, in the gas flow path of the present invention, it is preferable that the holding member is a mat made of ceramic fibers. Further, it is preferable that the surface pressure generated when the gripping material is compressed is less than twice the normal temperature within the practical temperature range of the gas flow path.

【００１６】[0016]

【発明の実施の形態】 本発明のガス流路において、セ
ラミックハニカム構造体を、押し込み方式にてメタルケ
ース内に収納した場合には、図１（ａ）に示すように、
セラミックハニカム構造体２の外周面に巻き回した把持
材１の合わせ部４近傍部分が、ハニカム構造を構成する
セル８の隔壁９に対向するように配置される。BEST MODE FOR CARRYING OUT THE INVENTION In a gas flow channel of the present invention, when a ceramic honeycomb structure is housed in a metal case by a pushing method, as shown in FIG.
The portion near the mating portion 4 of the gripping material 1 wound around the outer peripheral surface of the ceramic honeycomb structure 2 is disposed so as to face the partition 9 of the cell 8 constituting the honeycomb structure.

【００１７】 又、本発明のガス流路において、セラミ
ックハニカム構造体を、巻き締め方式にてメタルケース
内に収納した場合には、図１（ｂ）に示すように、メタ
ルケース３を構成する金属板７の両端部のうち、内側に
配置された端部１０近傍部分が、ハニカム構造を構成す
るセル８の隔壁９に対向するように配置される。In the gas flow path of the present invention, when the ceramic honeycomb structure is housed in a metal case by a winding method, a metal case 3 is configured as shown in FIG. Of both ends of the metal plate 7, a portion near the end 10 arranged inside is arranged so as to face the partition 9 of the cell 8 constituting the honeycomb structure.

【００１８】 ハニカム構造を構成するセルは、図４に
示すように、隔壁９に対して垂直方向のベクトルを有す
る力１１に最も強く、力のベクトルが、隔壁９に対して
斜めに傾く程弱くなる。そして、隔壁９に対して斜め４
５°のベクトルを有する力１２に最も弱い。一方、セラ
ミックハニカム構造体をメタルケース内に収納した場
合、押し込み方式の場合、把持材の合わせ部近傍部分の
把持圧が最も高く、巻き締め方式の場合、メタルケース
を構成する金属板の両端部のうち、内側に配置された端
部近傍部分の圧力が最も高くなる。即ち、ハニカム構造
体は、把持材の合わせ部近傍部分又は金属板の内側に配
置された端部近傍部分において、最も強い圧力を受ける
ことになる。As shown in FIG. 4, the cells constituting the honeycomb structure are strongest against a force 11 having a vector in a direction perpendicular to the partition wall 9, and weaker as the force vector is obliquely inclined with respect to the partition wall 9. Become. And, 4
Weakest to force 12 with 5 ° vector. On the other hand, when the ceramic honeycomb structure is housed in a metal case, in the case of the push-in method, the gripping pressure in the vicinity of the joining portion of the gripping material is the highest, and in the case of the curling method, both ends of the metal plate constituting the metal case Among them, the pressure in the vicinity of the end located inside is the highest. That is, the honeycomb structure receives the strongest pressure in the vicinity of the mating portion of the gripping material or in the vicinity of the end located inside the metal plate.

【００１９】 従って、本発明においては、図１（ａ）
又は（ｂ）に示すように、把持材１の合わせ部４近傍部
分又は金属板７の両端部のうち内側に配置された端部１
０近傍部分を、ハニカム構造を構成するセル８の隔壁９
に対向するように配置することにより、合わせ部４近傍
部分又は金属板７の両端部のうち内側に配置された端部
１０近傍部分の最も高い圧力が、セル８の隔壁９の面に
対してほぼ垂直方向からかかるようにしている。そのた
め、本発明の流路において、厚さ０．０３〜０．１０ｍ
ｍという薄い隔壁を有するセラミックハニカム構造体を
用いた場合でも、キャニングの際あるいは使用中に、把
持材又はメタルケースからの圧力によりハニカム構造体
が破損することがない。Therefore, in the present invention, FIG.
Or, as shown in (b), the end 1 disposed inside the portion near the mating portion 4 of the gripping material 1 or the both ends of the metal plate 7.
The portion near 0 is replaced with the partition 9 of the cell 8 constituting the honeycomb structure.
, The highest pressure in the vicinity of the mating part 4 or in the vicinity of the end 10 disposed inside of both ends of the metal plate 7 is applied to the surface of the partition 9 of the cell 8. It is applied almost vertically. Therefore, in the channel of the present invention, a thickness of 0.03 to 0.10 m
Even when a ceramic honeycomb structure having a thin partition wall of m is used, the honeycomb structure is not damaged by the pressure from the gripping material or the metal case during canning or during use.

【００２０】 尚、本発明において「合わせ部近傍部
分」とは、図２（ａ）、（ｂ）及び（ｃ）に示すよう
に、把持材１の両端の合わせ部１３及び上記合わせ部１
３から両方向に５ｍｍの範囲１４をいう。In the present invention, the “portion near the mating portion” is, as shown in FIGS. 2A, 2B and 2C, a mating portion 13 at both ends of the gripping material 1 and the mating portion 1.
3 means a range 14 of 5 mm in both directions.

【００２１】 又、「内側に配置された端部近傍部分」
とは、図３（ａ）、（ｂ）に示すように、金属板の両端
部のうち内側に配置された端部１０の縁より、締められ
る方向に３０ｍｍの幅を有する領域１５をいう。[0021] Also, "a part near the end arranged inside"
3A and 3B, a region 15 having a width of 30 mm in a direction to be tightened from the edge of the end portion 10 arranged inside of both ends of the metal plate as shown in FIGS.

【００２２】 又、「セルの隔壁に対向するように配置
する」とは以下の事項をいう。図４に示すように、ハニ
カム構造体２の断面の中心点Ａから各セル８の隔壁９に
よって構成される線分ＢＣに垂線ＡＤを引く。又、垂線
ＡＤと断面の周線Ｘとの交点をＥとする。中心点Ａよ
り、線分ＡＥと１５°の角度をなす直線ＡＦ及びＡＧを
引き、直線ＡＦ及びＡＧと曲線Ｘとの交点を、それぞれ
Ｆ、Ｇとする。「合わせ部近傍部分をセルの隔壁に対向
するように配置する」とは、合わせ部近傍部分が交点Ｆ
及びＧの間に位置することをいう。同様に、「金属板の
内側に配置された端部近傍部分をセルの隔壁に対向する
ように配置する」とは、金属板の両端部のうち内側に配
置された端部近傍部分が交点Ｆ及びＧの間に位置するこ
とをいう。Further, “disposing the cell so as to face the partition wall” means the following. As shown in FIG. 4, a perpendicular AD is drawn from a center point A of the cross section of the honeycomb structure 2 to a line segment BC constituted by the partition walls 9 of each cell 8. Also, the intersection point between the perpendicular AD and the peripheral line X of the cross section is E. From the center point A, straight lines AF and AG forming an angle of 15 ° with the line segment AE are drawn, and intersections of the straight lines AF and AG with the curve X are defined as F and G, respectively. “To arrange the portion near the joining portion so as to face the partition wall of the cell” means that the portion near the joining portion is at the intersection F
And G. Similarly, "disposing the portion near the end located inside the metal plate so as to face the partition wall of the cell" means that the portion near the end located inside the metal plate at both ends is the intersection F And G.

【００２３】 又、押し込み方式の場合、上記のガス流
路において、把持部の合わせ部の、巻き回し方向におけ
る長さ１７が２０〜５０ｍｍ、又は上記把持材の巻き回
し方向における長さ１６の５〜１５％であることが好ま
しい。合わせ部の長さが上記の範囲より短い場合は、ハ
ニカム構造体の径のばらつきから重なり幅（シール幅）
が短くなり、ガスが漏洩するおそれがあるからであり、
合わせ部の長さが上記の範囲より長い場合は、合わせ部
近傍部分の面積が大きくなり、合わせ部近傍部分をセル
の隔壁に対向する範囲内に配置することが困難となるか
らである。尚、合わせ部の巻き回し方向における長さ１
７は、２５〜４０ｍｍ、又は上記把持材の巻き回し方向
における長さ１６の７〜１０％であることがより好まし
い。In the case of the push-in method, in the above-mentioned gas flow path, the length 17 in the winding direction of the mating portion of the gripping portion is 20 to 50 mm, or the length 16 in the winding direction of the gripping material is 5/5. It is preferably about 15%. If the length of the mating portion is shorter than the above range, the overlapping width (seal width) is obtained from the variation in the diameter of the honeycomb structure.
Is shortened and gas may leak,
If the length of the mating portion is longer than the above range, the area of the portion near the mating portion becomes large, and it is difficult to arrange the portion near the mating portion in a range facing the partition wall of the cell. Note that the length of the mating portion in the winding direction is 1
7 is more preferably 25 to 40 mm, or 7 to 10% of the length 16 in the winding direction of the gripping material.

【００２４】 本発明のガス流路は、各セルの断面形状
が四角形であるハニカム構造体に最も好適に用いられる
が、各セルの断面形状が三角形であるハニカム構造体に
も好適に用いることができる。The gas flow path of the present invention is most preferably used for a honeycomb structure in which each cell has a rectangular cross section, and is also preferably used for a honeycomb structure in which each cell has a triangular cross section. it can.

【００２５】 又、ガス流路を高温下で使用した場合
に、把持材の膨張により過大な圧力がセラミック構造体
にかかり、セラミック構造体が破損するのを防ぐため、
把持材を圧縮した際の発生面圧が、ガス流路の実用温度
範囲内において、常温時の２倍未満であることが好まし
い。ここで、「ガス流路の実用温度範囲」とは３００〜
１０００℃をいい、「常温」とは０〜４０℃をいう。Further, when the gas flow path is used at a high temperature, in order to prevent an excessive pressure from being applied to the ceramic structure due to the expansion of the gripping material and to prevent the ceramic structure from being damaged,
It is preferable that the surface pressure generated when the gripping material is compressed is less than twice the normal temperature within the practical temperature range of the gas flow path. Here, the “practical temperature range of the gas flow path” is 300 to
1000 ° C., “normal temperature” means 0 to 40 ° C.

【００２６】 又、本発明において、把持材の材質は特
に限定されるものではないが、アルミナ、アルミノシリ
ケート等が好適に用いられ、優れた耐熱性を有するた
め、セラミック繊維より成るマットを用いることがより
好ましい。In the present invention, the material of the gripping material is not particularly limited, but alumina, aluminosilicate, or the like is preferably used, and a mat made of ceramic fiber is used because it has excellent heat resistance. Is more preferred.

【００２７】 尚、本発明は、用いるハニカム構造体の
断面形状（円、楕円、オーバル、レーストラック等）、
サイズ、隔壁厚、セル数、セルピッチ等に制限されるこ
となく、広くハニカム構造体全般に用いることができる
ものである。In the present invention, the cross-sectional shape (circle, ellipse, oval, race track, etc.) of the honeycomb structure used,
The present invention can be widely used for the entire honeycomb structure without being limited by the size, the partition wall thickness, the number of cells, the cell pitch, and the like.

【００２８】[0028]

【実施例】 以下、本発明を図示の実施例を用いてさら
に詳しく説明するが、本発明はこれらの実施例に限られ
るものではない。Hereinafter, the present invention will be described in more detail with reference to the illustrated embodiments, but the present invention is not limited to these embodiments.

【００２９】（実施例１） 端面が直径１０６ｍｍの円
形である長さ１１４ｍｍのセラミックハニカム構造体２
０個を、間に把持材１を介して、押し込み方式にて別々
のメタルケース３内に収納し、その際に損傷を受けたハ
ニカム構造体の数を調べた。Example 1 A 114 mm long ceramic honeycomb structure 2 having a circular end face having a diameter of 106 mm
Zero pieces were housed in separate metal cases 3 by a pushing method with the holding material 1 interposed therebetween, and the number of honeycomb structures damaged at that time was examined.

【００３０】 ハニカム構造体２のメタルケース３内へ
の押し込みは以下のように行った。まず、互いに相補的
な形状を有する合わせ部４を設けた図２（ｂ）に示す把
持材１を、図１（ａ）に示すように、把持材１の合わせ
部近傍部分１４が、ハニカム構造を構成するセル８の隔
壁９に対向するように、ハニカム構造体２の外周面に巻
き回し、把持材１の両端部の合わせ部４を嵌め合わせて
固定した。次に、図２（ｄ）に示すように、孔径が一方
から他方に向かって小さくなる挿入治具５を用いて、メ
タルケース３内へ押し込んだ。設定面圧は４ｋｇ／ｃｍ
2とした。尚、押し込みの際、把持材１の外周面にはす
べりテープ６を配置した。The honeycomb structure 2 was pushed into the metal case 3 as follows. First, the gripping material 1 shown in FIG. 2B provided with a mating portion 4 having a shape complementary to each other is used, and as shown in FIG. Was wound around the outer peripheral surface of the honeycomb structure 2 so as to face the partition wall 9 of the cell 8 constituting the cell 8, and the mating portions 4 at both ends of the gripping material 1 were fitted and fixed. Next, as shown in FIG. 2D, the hole was pushed into the metal case 3 using an insertion jig 5 having a hole diameter decreasing from one side to the other side. Set surface pressure is 4kg / cm
And 2 . At the time of pushing, the slip tape 6 was arranged on the outer peripheral surface of the gripping material 1.

【００３１】 用いたハニカム構造体のセルの断面形状
は四角形であり、隔壁の厚さは０．０３ｍｍ、セル密度
は２８０個／ｃｍ2であった。又、用いたハニカム構造
体２０個と同一ロットのハニカム構造体の平均アイソス
タティック強度は６ｋｇ／ｃｍ2であり、アイソスタテ
ィック強度の範囲は５〜７ｋｇ／ｃｍ2であった。尚、
アイソスタティック強度の測定は、ＪＡＳＯ規格Ｍ５０
５−８７に従って行った。又、把持材にはセラミック繊
維より成る非膨張性マット（三菱化学株式会社製、商標
名、マフテック）を用いた。結果を表１に示す。The cells of the honeycomb structure used had a square cross section, a partition wall thickness of 0.03 mm, and a cell density of 280 cells / cm 2 . The average isostatic strength of the honeycomb structure of the honeycomb structure 20 and the same lot used was 6 kg / cm 2, the range of the isostatic strength was 5~7kg / cm 2. still,
The measurement of isostatic strength is based on JASO standard M50.
Performed according to 5-87. In addition, a non-expandable mat (made by Mitsubishi Chemical Corporation, trade name, Mufftec) made of ceramic fiber was used as the holding material. Table 1 shows the results.

【００３２】（実施例２及び３） 実施例１と同様に、
セラミックハニカム構造体２０個を、押し込み方式にて
別々のメタルケース内に収納し、その際に損傷を受けた
ハニカム構造体の数を調べた。尚、ハニカム構造体のセ
ルの断面形状、隔壁の厚さ、セル密度、平均アイソスタ
ティック強度等は、実施例１で用いたハニカム構造体と
適宜変えてあるが、それらの値及び試験結果を表１に示
す。(Examples 2 and 3) As in Example 1,
Twenty ceramic honeycomb structures were housed in separate metal cases by a pushing method, and the number of honeycomb structures damaged at that time was examined. The cross-sectional shape of the cells of the honeycomb structure, the thickness of the partition walls, the cell density, the average isostatic strength, and the like were appropriately changed from those of the honeycomb structure used in Example 1. It is shown in FIG.

【００３３】（実施例４） 端面が直径１０６ｍｍの円
形である長さ１１４ｍｍのセラミックハニカム構造体２
０個を、巻き締め方式にて別々のメタルケース内に収納
し、その際に損傷を受けたハニカム構造体の数を調べ
た。Example 4 A 114 mm long ceramic honeycomb structure 2 having a circular end face having a diameter of 106 mm
Zero pieces were stored in separate metal cases by a winding method, and the number of honeycomb structures damaged at that time was examined.

【００３４】 ハニカム構造体のメタルケース内への収
納は以下のように行った。図３（ｂ）に示すように、ハ
ニカム構造体２の外周面に把持材１を巻き回し、巻き締
めた後に金属板７の両端部のうち、内側に配置される端
部１０近傍部分１５が、ハニカム構造を構成するセル８
の隔壁９に対向するように、ハニカム構造体２と把持材
１をメタルケース３に収納し、金属板７の両端部を重ね
合わせて固定した。設定面圧は４ｋｇ／ｃｍ2とした。
又、把持材１にはセラミック繊維より成る非膨張性マッ
ト（三菱化学株式会社製、商標名、マフテック）を用い
た。The housing of the honeycomb structure in the metal case was performed as follows. As shown in FIG. 3B, the gripping material 1 is wound around the outer peripheral surface of the honeycomb structure 2, and after tightening, the portion 15 near the end 10 disposed inside the metal plate 7 is disposed at both ends. , Cell 8 constituting honeycomb structure
The honeycomb structure 2 and the gripping material 1 were housed in the metal case 3 so as to face the partition wall 9 of the above, and both ends of the metal plate 7 were overlapped and fixed. The set surface pressure was 4 kg / cm 2 .
In addition, a non-expandable mat (made by Mitsubishi Chemical Corporation, trade name, Mufftech) made of ceramic fiber was used as the holding material 1.

【００３５】 用いたハニカム構造体のセルの断面形
状、隔壁の厚さ、セル密度平均アイソスタティック強度
の値、アイソスタティック強度の範囲及び試験結果を表
１に示す。尚、アイソスタティック強度の測定は、ＪＡ
ＳＯ規格Ｍ５０５−８７に従って行った。Table 1 shows the cross-sectional shape of the cells of the honeycomb structure used, the thickness of the partition walls, the value of the cell density average isostatic strength, the range of the isostatic strength, and the test results. The measurement of the isostatic strength was performed according to JA.
Performed according to SO standard M505-87.

【００３６】（比較例１） 実施例１と同様に、セラミ
ックハニカム構造体２０個を、押し込み方式にて別々の
メタルケース内に収納し、その際に損傷を受けたハニカ
ム構造体の数を調べた。但し、把持材の合わせ部近傍部
分が、ハニカム構造を構成するセルの隔壁に対向するよ
うには配置しなかった。結果を表１に示す。Comparative Example 1 As in Example 1, 20 ceramic honeycomb structures were housed in separate metal cases by a push-in method, and the number of honeycomb structures damaged at that time was examined. Was. However, it was not arranged so that the portion near the mating portion of the gripping material faced the partition walls of the cells constituting the honeycomb structure. Table 1 shows the results.

【００３７】（比較例２） 実施例２と同様に、セラミ
ックハニカム構造体２０個を、押し込み方式にて別々の
メタルケース内に収納し、その際に損傷を受けたハニカ
ム構造体の数を調べた。但し、把持材の合わせ部近傍部
分が、ハニカム構造を構成するセルの隔壁に対向するよ
うには配置しなかった。結果を表１に示す。(Comparative Example 2) As in Example 2, 20 ceramic honeycomb structures were housed in separate metal cases by a pushing method, and the number of honeycomb structures damaged at that time was examined. Was. However, it was not arranged so that the portion near the mating portion of the gripping material faced the partition walls of the cells constituting the honeycomb structure. Table 1 shows the results.

【００３８】（比較例３） 実施例３と同様に、セラミ
ックハニカム構造体２０個を、押し込み方式にて別々の
メタルケース内に収納し、その際に損傷を受けたハニカ
ム構造体の数を調べた。但し、把持材の合わせ部近傍部
分が、ハニカム構造を構成するセルの隔壁に対向するよ
うには配置しなかった。結果を表１に示す。Comparative Example 3 In the same manner as in Example 3, 20 ceramic honeycomb structures were housed in separate metal cases by a pushing method, and the number of honeycomb structures damaged at that time was examined. Was. However, it was not arranged so that the portion near the mating portion of the gripping material faced the partition walls of the cells constituting the honeycomb structure. Table 1 shows the results.

【００３９】（比較例４） 実施例４と同様に、セラミ
ックハニカム構造体２０個を、巻き締め方式にて別々の
メタルケース内に収納し、その際に損傷を受けたハニカ
ム構造体の数を調べた。但し、金属板の両端部のうち、
内側に配置される端部近傍部分が、ハニカム構造を構成
するセルの隔壁に対向するようには配置しなかった。結
果を表１に示す。(Comparative Example 4) As in Example 4, 20 ceramic honeycomb structures were housed in separate metal cases by a winding method, and the number of honeycomb structures damaged at that time was determined. Examined. However, of both ends of the metal plate,
It was not arranged so that the portion near the end arranged inside was opposed to the partition wall of the cell constituting the honeycomb structure. Table 1 shows the results.

【００４０】[0040]

【表１】 [Table 1]

【００４１】 表１より、実施例においては、ハニカム
構造体の損傷は全く起こらなかったが、比較例において
は、５〜１００％のハニカム構造体に損傷が生じた。As shown in Table 1, in the example, no damage to the honeycomb structure occurred, but in the comparative example, 5 to 100% of the honeycomb structure was damaged.

【００４２】（参考例１） セラミックハニカム構造体
を、押し込み方式にてメタルケース内に収納してガス流
を構成した場合の、ハニカム構造体各部位にかかる面圧
を測定した。(Reference Example 1) The surface pressure applied to each part of the honeycomb structure was measured when the ceramic honeycomb structure was housed in a metal case by a pushing method to form a gas flow.

【００４３】 面圧の測定は以下のように行った。周面
にシート状の圧力センサを巻いたハニカム構造体２の外
周面に、互いに相補的な形状を有する合わせ部４を設け
た把持材１を巻き回し、把持材１の両端部の合わせ部４
を嵌め合わせて固定した。次に、把持材１の外周面にす
べりテープ６を配置し、図２（ｄ）に示すように、孔径
が一方から他方に向かって小さくなる挿入治具５を用い
て、メタルケース３内へ押し込んだ。設定面圧は４ｋｇ
／ｃｍ2とした。面圧は、図５に示す５箇所において測
定した。The measurement of the surface pressure was performed as follows. A gripping member 1 provided with mating portions 4 having complementary shapes is wound around the outer peripheral surface of a honeycomb structure 2 having a sheet-shaped pressure sensor wound on the peripheral surface, and the mating portions 4 at both ends of the gripping material 1 are wound.
Was fitted and fixed. Next, a slip tape 6 is arranged on the outer peripheral surface of the gripping material 1 and, as shown in FIG. 2D, is inserted into the metal case 3 by using an insertion jig 5 whose hole diameter decreases from one side to the other side. Pressed. Set surface pressure is 4kg
/ Cm 2 . The surface pressure was measured at five points shown in FIG.

【００４４】 尚、把持材にはセラミック繊維より成る
マット（三菱化学株式会社製、商標名、マフテック）を
用い、圧力センサはタクタイルセンサ（ニッタ株式会社
製、商標）を用いた。結果を図６に示す。A mat made of ceramic fiber (Maftec, trade name, manufactured by Mitsubishi Chemical Corporation) was used as the holding material, and a tactile sensor (trade name, manufactured by Nitta Corporation) was used as the pressure sensor. FIG. 6 shows the results.

【００４５】（参考例２） セラミックハニカム構造体
を、巻き締め方式にてメタルケース内に収納してガス流
を構成した場合の、ハニカム構造体各部位にかかる面圧
を測定した。(Reference Example 2) When the ceramic honeycomb structure was housed in a metal case by a winding method to form a gas flow, the surface pressure applied to each portion of the honeycomb structure was measured.

【００４６】 面圧の測定は以下のように行った。周面
にシート状の圧力センサを巻いたハニカム構造体２の外
周面に把持材１を巻き回し、さらに図３（ｂ）示すよう
に、メタルケース３に収納した。次に、図７に示すよう
に、ワイヤーロープ１８を巻いて、設定面圧が４ｋｇ／
ｃｍ2となる所定の荷重を負荷した。面圧は、図８に示
す５箇所において測定した。結果を図９に示す。尚、把
持材及び圧力センサは参考例１と同様のものを用いた。The measurement of the surface pressure was performed as follows. The gripping material 1 was wound around the outer peripheral surface of a honeycomb structure 2 having a sheet-shaped pressure sensor wound around the peripheral surface, and further housed in a metal case 3 as shown in FIG. Next, as shown in FIG. 7, the wire rope 18 is wound, and the set surface pressure is 4 kg /
A predetermined load of cm 2 was applied. The surface pressure was measured at five points shown in FIG. FIG. 9 shows the results. Note that the same gripping material and pressure sensor as in Reference Example 1 were used.

【００４７】 図６及び図９より、把持材の合わせ部近
傍部分及び金属板の両端部のうち、内側に配置される端
部近傍部分において、ハニカム構造体に高い面圧がかか
ることがわかる。FIG. 6 and FIG. 9 show that a high surface pressure is applied to the honeycomb structure in the vicinity of the mating portion of the gripping material and in the vicinity of the inside end of the metal plate.

【００４８】（参考例３） 円柱形状を有するセラミッ
クハニカム構造体に、図１０に示すように、種々の角度
から力を加えて強度試験を行い、破壊強度を測定した。
尚、ハニカム構造体は、端面の直径１０３ｍｍ、長さ１
２０ｍｍ、隔壁の厚さ０．０９ｍｍ、セル密度６０個／
ｃｍ2のものを用いた。結果を図１１に示す。Reference Example 3 As shown in FIG. 10, a strength test was performed by applying forces from various angles to a cylindrical ceramic honeycomb structure to measure the breaking strength.
The honeycomb structure had an end face with a diameter of 103 mm and a length of 1 mm.
20 mm, partition wall thickness 0.09 mm, cell density 60 cells /
cm 2 was used. The results are shown in FIG.

【００４９】 図１１より、ハニカム構造体は、隔壁の
面に対して垂直方向のベクトルを有する力に最も強く、
隔壁の面に対して斜め４５°のベクトルを有する力に最
も弱いことがわかる。As shown in FIG. 11, the honeycomb structure is most resistant to a force having a vector in a direction perpendicular to the surface of the partition wall.
It can be seen that it is weakest against a force having a vector at an angle of 45 ° with respect to the surface of the partition.

【００５０】[0050]

【発明の効果】 本発明のガス流路においては、隔壁の
厚さの薄いセラミックハニカム構造体を用いた場合で
も、キャニングの際にセラミックハニカム構造体が破損
することがないため、取扱いに慎重さを要する薄壁のハ
ニカム構造体のキャニングの作業効率が向上する。又、
薄壁のハニカム構造体をガス流路に組み込んで使用する
ことが可能となるため、例えば、排ガス浄化用触媒の場
合、触媒の熱容量の低減を通じてコールドスタート時に
おける触媒の早期活性化が可能となり、排ガス浄化性能
の向上が期待できるとともに、ガス流路自体を小型化す
ることができる。In the gas flow path of the present invention, even when a ceramic honeycomb structure having a thin partition wall is used, the ceramic honeycomb structure is not damaged during canning, so that handling is carefully performed. The work efficiency of canning of a thin-walled honeycomb structure that requires the above is improved. or,
Since the thin-walled honeycomb structure can be used by being incorporated into the gas flow path, for example, in the case of an exhaust gas purifying catalyst, the catalyst can be quickly activated at the time of a cold start by reducing the heat capacity of the catalyst, Exhaust gas purification performance can be expected to be improved, and the gas passage itself can be reduced in size.

【図面の簡単な説明】[Brief description of the drawings]

【図１】 （ａ）本発明のガス流路における合わせ部と
隔壁との位置関係の一例を示す斜視図、及び（ｂ）本発
明のガス流路における金属板の端部と隔壁との位置関係
の一例を示す斜視図である。FIG. 1A is a perspective view showing an example of a positional relationship between a mating portion and a partition in a gas flow channel of the present invention, and FIG. It is a perspective view which shows an example of a relationship.

【図２】 （ａ）ハニカム構造体に把持材を巻き回した
状態を示す斜視図、（ｂ）把持材の一例及び（ｃ）他の
例を示す模式図、及び（ｄ）押し込み方式によるハニカ
ム構造体のメタルケース内への収納方法を示す模式断面
図である。2A is a perspective view showing a state in which a gripping material is wound around a honeycomb structure, FIG. 2B is a schematic view showing an example of a gripping material, and FIG. 2C is a schematic diagram showing another example, and FIG. It is a schematic cross section showing how to store a structure in a metal case.

【図３】 （ａ）巻き締め方式によりハニカム構造体を
メタルケース内への収納した状態の一例及び（ｂ）他の
例を示す斜視図である。3A is a perspective view illustrating an example of a state in which a honeycomb structure is housed in a metal case by a winding method, and FIG. 3B is a perspective view illustrating another example.

【図４】 ハニカム構造体の強さと力の向きとの関係を
示す模式図である。FIG. 4 is a schematic diagram illustrating a relationship between the strength of a honeycomb structure and the direction of a force.

【図５】 面圧測定試験における測定部位を示す斜視図
である。FIG. 5 is a perspective view showing a measurement site in a surface pressure measurement test.

【図６】 面圧測定試験の結果を示すグラフである。FIG. 6 is a graph showing the results of a surface pressure measurement test.

【図７】 面圧測定方法の一例を示す模式図である。FIG. 7 is a schematic view illustrating an example of a surface pressure measuring method.

【図８】 面圧測定試験における測定部位を示す斜視図
である。FIG. 8 is a perspective view showing a measurement site in a surface pressure measurement test.

【図９】 面圧測定試験の結果を示すグラフである。FIG. 9 is a graph showing the results of a surface pressure measurement test.

【図１０】 破壊強度測定試験において、ハニカム構造
体にかけた力の向きを示す模式図である。FIG. 10 is a schematic diagram showing the direction of a force applied to a honeycomb structure in a breaking strength measurement test.

【図１１】 ハニカム構造体の破壊強度測定試験の結果
を示すグラフである。FIG. 11 is a graph showing the results of a fracture strength measurement test of a honeycomb structure.

【符号の説明】[Explanation of symbols]

１…把持材、２…ハニカム構造体、３…メタルケース、
４…合わせ部、５…挿入治具、６…すべりテープ、７…
金属板、８…セル、９…隔壁、１０…金属板の端部のう
ち内側に配置された端部、１１…隔壁に対して垂直方向
のベクトルを有する力、１２…隔壁に対して斜め４５°
のベクトルを有する力、１３…合わせ部、１４…合わせ
部近傍部分、１５…金属板の端部のうち内側に配置され
た端部近傍部分、１６…把持材の巻き回し方向における
長さ、１７…合わせ部の巻き回し方向における長さ、１
８…ワイヤーロープ。DESCRIPTION OF SYMBOLS 1 ... gripping material, 2 ... honeycomb structure, 3 ... metal case,
4 ... Mating part, 5 ... Insert jig, 6 ... Slip tape, 7 ...
Metal plate, 8 cells, 9 partition walls, 10 inside edges of metal plate ends, 11 force with vector perpendicular to partition walls, 12 diagonal 45 to partition walls °
13 ... Mating portion, 14: A portion in the vicinity of the joining portion, 15 ... A portion near the inner end of the end of the metal plate, 16 ... Length in the winding direction of the gripping material, 17 ... Length in the winding direction of the joining portion, 1
8 ... Wire rope.

───────────────────────────────────────────────────── フロントページの続き Ｆターム(参考） 3G091 AA02 AB01 BA03 BA39 GA06 GB17Z HA27 HA29 HA31 HA44 4D048 BB02 CA02 CC03  ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3G091 AA02 AB01 BA03 BA39 GA06 GB17Z HA27 HA29 HA31 HA44 4D048 BB02 CA02 CC03

Claims (9)

【特許請求の範囲】[Claims] 【請求項１】 間に把持材を介しつつ、メタルケース内
に収納したセラミックハニカム構造体を有するガス流路
であって、 該把持材が、その両端部に、互いに相補的な形状を有す
る合わせ部を有し、 該セラミックハニカム構造体の外周面に巻き回した該把
持材の合わせ部近傍部分を、ハニカム構造を構成するセ
ルの隔壁に対向するように配置したことを特徴とするセ
ラミックハニカム構造体を有するガス流路。1. A gas flow path having a ceramic honeycomb structure housed in a metal case with a gripping material interposed therebetween, wherein the gripping material has complementary shapes at both ends thereof. A ceramic honeycomb structure, wherein a portion near a mating portion of the gripping material wound around the outer peripheral surface of the ceramic honeycomb structure is arranged so as to face a partition wall of a cell constituting the honeycomb structure. A gas flow path having a body. 【請求項２】 該把持材を巻き回したセラミックハニカ
ム構造体を、該メタルケースの開口部の一方より押し込
むことにより、該メタルケース内に収納した請求項１に
記載のセラミックハニカム構造体を有するガス流路。2. The ceramic honeycomb structure according to claim 1, wherein the ceramic honeycomb structure wound with the holding material is housed in the metal case by being pushed in from one of the openings of the metal case. Gas flow path. 【請求項３】 該合わせ部の巻き回し方向における長さ
が２０〜５０ｍｍ、又は該把持材の巻き回し方向におけ
る長さの５〜１５％である請求項１又は２に記載のセラ
ミックハニカム構造体を有するガス流路。3. The ceramic honeycomb structure according to claim 1, wherein the length of the joining portion in the winding direction is 20 to 50 mm, or 5 to 15% of the length of the holding member in the winding direction. A gas flow path having: 【請求項４】 間に把持材を介しつつ、メタルケース内
に収納したセラミックハニカム構造体を有するガス流路
であって、 該メタルケースは、該セラミックハニカム構造体の外周
面に巻き回した該把持材にさらに巻き回した金属板を、
その両端部を重ね合わせた状態にて巻き締めた構造を有
し、 該両端部のうち、内側に配置された端部近傍部分を、ハ
ニカム構造を構成するセルの隔壁に対向するように配置
したことを特徴とするセラミックハニカム構造体を有す
るガス流路。4. A gas flow path having a ceramic honeycomb structure housed in a metal case with a holding material interposed therebetween, wherein the metal case is wound around an outer peripheral surface of the ceramic honeycomb structure. The metal plate further wound around the gripping material,
It has a structure in which both end portions are wound up in a state of being overlapped, and of the two end portions, a portion near an end portion arranged inside is arranged so as to face a partition wall of a cell constituting the honeycomb structure. A gas flow path having a ceramic honeycomb structure, characterized in that: 【請求項５】 該セラミックハニカム構造体の隔壁の厚
さが０．１０ｍｍ未満である請求項１、２、３又は４に
記載のセラミックハニカム構造体を有するガス流路。5. The gas flow path having a ceramic honeycomb structure according to claim 1, wherein the thickness of the partition walls of the ceramic honeycomb structure is less than 0.10 mm. 【請求項６】 該セラミックハニカム構造体において、
ハニカム構造を構成する各セルの断面形状が四角形であ
る請求項１、２、３、４又は５に記載のセラミックハニ
カム構造体を有するガス流路。6. The ceramic honeycomb structure according to claim 1, wherein
The gas flow path having a ceramic honeycomb structure according to claim 1, 2, 3, 4, or 5, wherein a cross-sectional shape of each cell constituting the honeycomb structure is quadrangular. 【請求項７】 該セラミックハニカム構造体が、排ガス
浄化用触媒である請求項１〜６のいずれか１項に記載の
セラミックハニカム構造体を有するガス流路。7. A gas flow path having a ceramic honeycomb structure according to claim 1, wherein the ceramic honeycomb structure is an exhaust gas purifying catalyst. 【請求項８】 該把持材が、セラミック繊維より成るマ
ットである請求項１〜７のいずれか１項に記載のセラミ
ックハニカム構造体を有するガス流路。8. The gas flow path having a ceramic honeycomb structure according to claim 1, wherein the holding material is a mat made of ceramic fibers. 【請求項９】 該把持材を圧縮した際の発生面圧が、ガ
ス流路の実用温度範囲内において、常温時の２倍未満で
ある請求項１〜８のいずれか１項に記載のセラミックハ
ニカム構造体を有するガス流路。9. The ceramic according to any one of claims 1 to 8, wherein a surface pressure generated when the gripping material is compressed is less than twice the normal temperature within a practical temperature range of the gas flow path. A gas flow path having a honeycomb structure.
JP00851499A 1999-01-14 1999-01-14 Gas flow path having a ceramic honeycomb structure Expired - Lifetime JP3821975B2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP00851499A JP3821975B2 (en) 1999-01-14 1999-01-14 Gas flow path having a ceramic honeycomb structure
DE60035813T DE60035813T2 (en) 1999-01-14 2000-01-13 Gas pipe with ceramic honeycomb structure
CA002295404A CA2295404C (en) 1999-01-14 2000-01-13 Gas duct comprising ceramic honeycomb structure
US09/482,120 US6521193B1 (en) 1999-01-14 2000-01-13 Ceramic honeycomb gas duct assembly and method of making the same
EP00300210A EP1020621B1 (en) 1999-01-14 2000-01-13 Gas duct comprising ceramic honeycomb structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP00851499A JP3821975B2 (en) 1999-01-14 1999-01-14 Gas flow path having a ceramic honeycomb structure

Publications (2)

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JP2000204938A true JP2000204938A (en) 2000-07-25
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7842117B2 (en) 2006-06-16 2010-11-30 Ibiden Co., Ltd. Holding sealer, exhaust gas processing device and manufacturing method of the same
JP2011005487A (en) * 2009-06-25 2011-01-13 Benteler Automobiltechnik Gmbh Method and apparatus for producing catalyst
JP2016130184A (en) * 2015-01-13 2016-07-21 日本碍子株式会社 Honeycomb structure, method for manufacturing the same, and canning structure
JP2019148218A (en) * 2018-02-27 2019-09-05 本田技研工業株式会社 Exhaust emission control device

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3390698B2 (en) * 1999-05-31 2003-03-24 日本碍子株式会社 Canning structure
EP1188910B1 (en) * 2000-09-18 2004-06-16 Toyota Jidosha Kabushiki Kaisha Method for Production of an Exhaust Gas Purifying Catalyst
JP4652553B2 (en) * 2000-11-10 2011-03-16 イビデン株式会社 Catalytic converter and manufacturing method thereof
US6732429B2 (en) * 2000-12-05 2004-05-11 Visteon Global Technologies, Inc. Method for measuring pressure on the substrate of spin formed catalytic converter
US20080241007A1 (en) * 2007-04-02 2008-10-02 Delphi Technologies, Inc. Catalytic converter with inner sheath and method for making the same
JP6370192B2 (en) * 2014-10-28 2018-08-08 イビデン株式会社 Electric heating type catalytic converter
WO2018013800A1 (en) 2016-07-13 2018-01-18 Corning Incorporated Exhaust gas treatment article and methods of manufacturing same
US10532631B2 (en) 2017-03-29 2020-01-14 Ford Global Technologies, Llc Acoustic air duct and air extraction system including a plurality of channels having an expansion chamber

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS587806B2 (en) * 1972-10-03 1983-02-12 フオルクスウア−ゲンウエルク アクチエンゲゼルシヤフト High pressure gas
JPS5832917A (en) 1981-08-21 1983-02-26 Toyota Motor Corp Production method of monolith catalyst converter
JPS5939719U (en) * 1982-09-07 1984-03-14 トヨタ自動車株式会社 Catalytic exhaust gas purification device
JPS59208119A (en) 1983-05-13 1984-11-26 Sankei Giken Kogyo Kk Catalytic converter
JPS6228012A (en) 1985-07-30 1987-02-06 Kawasaki Steel Corp Roll for scale breaker
JPS62176522A (en) 1986-01-27 1987-08-03 Yutaka Giken:Kk Mounting method of gas seal for catalyst carrier
JPS6487818A (en) 1987-09-29 1989-03-31 Toshiba Corp Supporting device for ceramic honeycomb member
US4929429A (en) 1988-02-11 1990-05-29 Minnesota Mining And Manufacturing Company Catalytic converter
US5293743A (en) * 1992-05-21 1994-03-15 Arvin Industries, Inc. Low thermal capacitance exhaust processor
GB2268695B (en) * 1992-07-18 1995-12-06 A C Rochester Australia Limite Catalytic converter mesh seals
JP2798871B2 (en) * 1993-09-03 1998-09-17 日本碍子株式会社 Ceramic honeycomb catalytic converter
US5866079A (en) * 1993-09-03 1999-02-02 Ngk Insulators, Ltd. Ceramic honeycomb catalytic converter
EP0837229B1 (en) * 1996-10-15 2002-04-24 Corning Incorporated Method of making a catalytic converter for use in an internal combustion engine
JP3072281B2 (en) 1997-04-10 2000-07-31 三菱化学株式会社 Catalytic converter

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7842117B2 (en) 2006-06-16 2010-11-30 Ibiden Co., Ltd. Holding sealer, exhaust gas processing device and manufacturing method of the same
JP2011005487A (en) * 2009-06-25 2011-01-13 Benteler Automobiltechnik Gmbh Method and apparatus for producing catalyst
JP2016130184A (en) * 2015-01-13 2016-07-21 日本碍子株式会社 Honeycomb structure, method for manufacturing the same, and canning structure
JP2019148218A (en) * 2018-02-27 2019-09-05 本田技研工業株式会社 Exhaust emission control device

Also Published As

Publication number Publication date
EP1020621B1 (en) 2007-08-08
EP1020621A3 (en) 2003-04-09
US6521193B1 (en) 2003-02-18
DE60035813D1 (en) 2007-09-20
CA2295404A1 (en) 2000-07-14
CA2295404C (en) 2004-04-27
DE60035813T2 (en) 2008-04-24
JP3821975B2 (en) 2006-09-13
EP1020621A2 (en) 2000-07-19

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